Brick-machine



"UNTED STATES PATENT OFFICE.

JOHN PARSONS, OF CLEVELAND, OHIO.

ERICKJVIACHINE.

Specification of Letters Patent No. 30,541, dated October 30, 1860.

To @ZZ whom it may concern:

Be it known that I, JOHN PARSONS, of Cleveland, in the county ofCuyahoga, State of Ohio, have invented a new and useful fmprovement inBrick-Molding Machines; and I do hereby declare the following is a full,clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, making a part of thisspecification.

Figure 1 is a perspective view of the machine for working. Fig. 2 is aback view of the escape door for sto-nes, &c., representing a stone s,striking the lower end of the slide. Fig. 3 is a perspective view of theescape door fitted with pivots ai, u, slide 2f (forced forward by astone at the back) as represented by Fig. 2, a latch u, inclined planesx, spring w, and guide at. Fig. 4 represents the driver, fitted withrack, guides and guide rods, regulating screws and pinch nuts, flexiblespring, or its equivalent and a friction roller. The driver is used foi`forcing molds forward when placed under the mud box to take the place ofthe inold under the receiver F when the clay has been forced into it andthe bricks formed.

Description of the Zz'y'erea parts of the machina- A is the main shaftrunning to the bottom and down the center of the mud 1 boX 14, on thisshaft are affixed arms Vand Q a wiper, for grinding and forcing the clayinto the receiver F, also wheel B bevel wheel H, cams c, c, c, on eachcam is a stud Z two cams only and one stud are shown on the drawings butall are shown on the model.

C is a plunger for forcing the clay into the molds, being attached tothe ress E inside the receiver F and arranged with friction wheel I,rack e and hub for connect ing the upper and lower parts of the plungerby right and left screws, which are also intended to lengthen andshorten the plunger to give a greater or lesser pressure to the clay asmay be required; the plunger is kept in its place by guides g and h.

G is a lever with cogs corresponding with and to operate the rack e onplunger O.

F is the receiver with a grating at the bottom, through which the clayis pressed into the molds on mold-bearer r and forms the bricks.

Z is a pinion wheel operated on by bevel wheel H. On the same shaft asthis pinion wheel is a miter wheel Z) to set in motion miter wheels y' jon vertical shaft Za, which drives another miter wheel on a horizontalshaft running under the machine on which is a spur wheel with cogscorresponding with cogs on rack 10 on the driver represented by Fig. 4.

y is a bevel wheel on the same horizontal shaft as miter wheel j withcoge corresponding to and driving pinion wheel e. On the same shaft aspinion wheel e is a roller m, connected with another roller m by a bando, which band is also attached at a proper point under table Z to aguide which runs in a long slot in the middle of table Z. The guide isfixed to the driver p, which runs over table Z to force the mold throughthe opening 13 to the roller m. At the outer end and under table Z isattached a flexible spring n, which is affixed to the bottom frame ofthe machine, and is intended by winding round roller m to draw back thedriver p, after delivering the mold through opening 13.

Fig. 3 is the escape door for stones, &c., fitted with slide t, in thefront of which are inclined planes m, ai, a latch u, kept in its placeby guide uf. The back part of slide t is formed hollow by the sides ofwhich when i a stone strikes it is conducted to the center and gives adirect push forward and effectually operates on spring 1V, which issecurely fixed on the top of the escape door and presses against thelower edge in front of slide t sufficiently strong to resist thepressure of the clay, and any hard substance coming against the backpart, the spring yields, the latch u is raised by the inclined planes a':c as the slide advances forward and opens the door. The same figuresused in Fig. 3 apply to the same parts on Fig. 2.-

Fig. 4 is the driver fitted with rack 10, having cogs to correspond withcogs on the spur wheel on horizontal shaft running under the machine, afront plate 6, connected with another plate 8 by two screws and pinchnuts l2, 12, intended to lengthen or shorten the driver to suitdifferent size molds. The plates 6 and 8 are attached to another plate 7by guide rods 15, 15, working when in use through guides 16, 16, xed onbed plate 5, at the back of which is a friction roller 9 for a band witha weight, or spring, or equivalent, to draw back the driver after havingforced forward the molds.

The operation of the machine is as follows, viz: A mold is to be placedon the mold bearer 1 under the receiver F, one under the mud boX 14immediately behind the first through the opening 13 at the side of themachine. A third is toV be placed on the mold table Z in front of thedriver p. If horse power is used the horse is to be attached to thelever g, and on motion being given to the shaft A, the clay having beenpreviously ground, the machinery is to be thrown into gear, the claywill be forced into the receiver F under the press E as it rises by theWiper at the lower end of the shaft A, the first cam c will pass overthe plunger O, bearing on friction wheel I, pressing powerfully theVvclayv through the grating of the receiver F into the mold underneathand forms the bricks.

The driver Fig. 4 fixed under the mud box is moved forward by the spurwheel on the horizontal shaft under the machine acting on rack 10 forcesthe mold forward in front of it, to take the place of the one that hasbeen filled under the receiver F. The press in the mean time has beenraised by the lever G being acted on'the top by the stud d, on cam o,moving it forward and bringing into operation the cogs on the lever withthe rack e, on plunger C. The driver having been drawn back by a spring,weight or equivalent, room is given 1n the front of it Vfor the moldthat is placed on the table Z in front of the driver p, which is to bemoved forward by the bevel Wheel y operating on pinion wheel a, rollersm and m connected by the band o under the table Z to the guide of driverp. After delivering the mold to its place, the bevel wheel y having onlysufficient number of cogs for that purpose forsakes the pinion wheel e,and the driver is drawn back by the spring n, or its equivalent; anothermold is to be placed on the table Z, and the same results will beproduced, making 18 bricks each revolution of the shaft A.

In the event of stones or any hard substances getting into the molds,danger of injury to them or the machinery is prevented by the escapedoor. The slide t is forcibly moved forward. The inclined planes m, w,being under the latch u raises vit and the door opens, hanging on pivotsfo, o, permitting the mold and stone to go forward. The door is quicklyclosed and the work again proceeds with but little loss of time.

The advantages derived by `the simple arrangements of this machine are,that its almost self acting principle insures great regularity in itsoperation, saves manual labor, is very convenient to use, and by thevgreat pressure given by the cams to the plunger much better and harderbricks are made than by the ordinary machines now in use, besides itsgreat security against accidents, by the escape door, and the meansprovided by the use of bevel wheel y in connection with the rollers,table Z &c.

,I do not claim as my invention the rack 10, nor the spur wheel whichoperates it on the shaft under the mud box 14.

What I claim as my invention is- 1. The wheel B fitted with cams c, c,c, and studs eZ, (Z, ZZ, in combination with lever Gr, rack e, hub f,friction wheel I substantially as described and for the purposes setforth. Y

2. The escape door Fig. 3 with slide Z formed hollow at the back part,inclined planes spring `w, latch u, guide u* substantiallyV as describedand for the purposes set forth. Y

3. The arrangement of the parts of the driver 4 (viz) the plates G, 7and 8 the regulating screws and pinch nuts in connection with the guiderods 15, 15, Vguides 16, 16, operated substantially as described and forthe purposes set forth.

4. The arrangementof the bevel wheel y, pinion wheel z in combinationwith rollers m and m band 0, spring u, or its equivalent the mold tableZ and driver p, substantially as describedv and for the purposes setforth.

Cleveland, Ohio, 29th J une, 1860.

JOHN PARSONS.

Witnesses:

WILLIAM VINCENT, O. lW. EAsTY.

